A discontinuous fibre reinforced composite consists of 20mm long carbon fibres in a polymer matrix. The volume fraction of the composite is 0.5, interfacial shear strength 5MPA and the critical fibre length 2.5mm. The fibre modulus is 250GPA and strain to failure 1.5%. The matrix modulus is 3.5GPa and failure strain 10%. If the ultimate fibre strength = 3500MPa, calculate the average failure stress in the composite.
A discontinuous fibre reinforced composite consists of 20mm long carbon fibres in a polymer matrix. The volume fraction of the composite is 0.5, interfacial shear strength 5MPA and the critical fibre length 2.5mm. The fibre modulus is 250GPA and strain to failure 1.5%. The matrix modulus is 3.5GPa and failure strain 10%. If the ultimate fibre strength = 3500MPa, calculate the average failure stress in the composite.
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter12: Composite Materials
Section: Chapter Questions
Problem 12.3P
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![A discontinuous fibre reinforced composite consists of 20mm long carbon fibres in a polymer matrix.
The volume fraction of
the composite is 0.5, interfacial shear strength 5MPa and the critical fibre length 2.5mm. The fibre
modulus is 250GPA and
strain to failure 1.5%. The matrix modulus is 3.5GPa and failure strain 10%.
If the ultimate fibre strength = 3500MPa, calculate the average failure stress in the composite.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcfb1bf49-2e31-4aec-905e-0b4907bc4a10%2Feecd2158-26fd-4a4c-961e-40d16b7be563%2Fpibvn2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A discontinuous fibre reinforced composite consists of 20mm long carbon fibres in a polymer matrix.
The volume fraction of
the composite is 0.5, interfacial shear strength 5MPa and the critical fibre length 2.5mm. The fibre
modulus is 250GPA and
strain to failure 1.5%. The matrix modulus is 3.5GPa and failure strain 10%.
If the ultimate fibre strength = 3500MPa, calculate the average failure stress in the composite.
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